4.10 rear in new Ford F350
A lot of leftovers have the 4.10 rear any one know if there would be a big difference in MPG towing or would it be negligible..?
Forum Discussion
Me Again wrote:
. What you think you gain with the lower diff gears in negated by the steeper OD ratio. Think final gear ratio!
Keep in mind that the transmission is worked harder with higher diff gears.
You multiply the top gear ratio times the diff gear ratio, and the result is always more torque with the lower rear gears. Add to that, each gear change is less of a difference in road speed, keeping the engine at a better RPM.
